Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X350-50
The AirTAC Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X350-50 is a genuine double acting, adjustable stroke ISO 15552 (orig. ISO 6431) tie-rod air cylinder with a Ø125mm bore and 350mm stroke, G1/2 air ports and adjustable end cushioning. Its large-bore tie-rod build delivers high thrust and drops into standardized ISO 15552 mounting on heavy automation.
- BoreØ125 mm
- Stroke350 mm
- Port sizeG1/2
- Acting typeDouble acting, adjustable stroke
- Rod threadM27×2.0
- CushionAdjustable, 40 mm
About the Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X350-50
Generating 6136 N of push force at 0.5 MPa, this large-bore ISO 15552 tie-rod cylinder uses four steel rods to clamp its aluminum barrel for high rigidity. The G1/2 port feeds a 125 mm bore that delivers reliable thrust, handling a safe working load of about 3682 N or lifting roughly 313 kg vertically with a 2:1 margin.
As an adjustable-stroke variant, an external stop screw lets you shorten the extend stroke on-site by up to 50 mm, yielding a usable 300 to 350 mm range while the retract end stays fixed. You can fine-tune the end position without swapping the cylinder. The default TPU seals offer long life, though a Viton H option extends the temperature range to 150 C. Note this specific SKU lacks a magnet and cannot accept CMSG, DMSG, or EMSG sensors.
Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X350-50 Technical Specifications
| Model | Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X350-50 |
|---|---|
| Series | SGC ISO 15552 tie-rod cylinder |
| Bore size | Ø125 mm |
| Stroke | 350 mm |
| Acting type | Double acting, adjustable stroke |
| Port size | G1/2 |
| Rod thread | M27×2.0 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 500 mm/s |
| Cushion | Adjustable, 40 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SGC datasheet and ISO 15552 dimensions. Confirm against the product label before installation. Thread options: PT (blank) / G. TPU seals are not available for the Ø250 bore (NBR / Viton only).
Theoretical Output Force (Ø125mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 6136 N | 5734 N |
| 0.7 MPa | 8590 N | — |
| Max (@1.0 MPa) | 1251 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X350-50
| SGCJ | ISO 15552 tie-rod cylinder (adjustable-stroke type). |
|---|---|
| 125 | Bore size in mm (125 / 160 / 200 / 250). |
| ×350 | Stroke length in mm. |
| -S | Optional built-in magnet for CMSG / DMSG / EMSG sensors. |
SGC-family variants: SGC (double acting), SGCD (double rod), SGCJ (adjustable stroke). Mounting: LB / FA / FB / CA / CB / CR / TC / FTC / TCM1 / TCM2. Seals: TPU (blank) / Viton H / NBR N.
Where the Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X350-50 Is Used
Press Fit Tuning
Micro-adjust the 300 to 350 mm extend stop on-site to set precise insertion depths for bearing press fits without remounting the actuator.
Diversion Gate Stop
Dial in the exact 50 mm window to accommodate different package sizes on a heavy sorting line, ensuring positive stops at varying heights.
Pallet Positioning
Leverage the 6136 N push force to shift heavy pallets, tweaking the extend end position to match changing pallet widths on the fly.
Is the Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X350-50 the Right Cylinder?
When sizing this unit, the neighboring 160 mm bore steps thrust up to 10053 N at 0.5 MPa, while dropping to a smaller bore drastically cuts force. The 125 mm bore sits at the low edge of this large-bore family, making it ideal when 6136 N is sufficient. The 50 mm adjustable window is highly useful for sharing one spare across multiple stroke variants or finalizing end positions on-site. Mounting options include FA, LB, TC, FTC, TCM1, and TCM2 brackets. Because the 350 mm stroke exceeds 500 mm, you must use a guide rail to prevent side-load damage. This non-magnetic SKU cannot take sensors; specify the -S variant for position detection.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT / G / NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Long-stroke side load — support the rod end
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load; support long strokes at the rod end.
- check Set cushions to minimum, then release gradually.
- check Use correct mounting accessory (LB/FA/FB/CA/CB/CR/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X350-50 FAQ
This 125 mm bore cylinder features a G1/2 port and a 32 mm rod. It generates 6136 N push and 5734 N pull at 0.5 MPa, increasing to 8590 N push and 8028 N pull at 0.7 MPa. The theoretical maximum force is 1251 kgf at 1.0 MPa.
The nominal 350 mm stroke is the maximum. An external adjuster lets you shorten the extend stroke by up to 50 mm on-site, providing a usable extend range of 300 to 350 mm. The retract end remains fixed. This mechanism sets the end position and does not hold the load on air loss; use an external rod lock for that.
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